Changed Microsoft Account Password Does not Change PC Login Password

I have three Win 10 PC's (desktop, laptop, Surface) that all have the admin login account set up through a common Microsoft Hotmail account. I changed to a new password on my Hotmail account, but the old Hotmail password is still used for logins to my three PC's. How do I change the PC passwords?

I tried doing it through Settings/Accounts/Manage My Microsoft Account/ on my desktop but that forced me to change my Hotmail password again. Now my desktop and Hotmail password are synced, but the laptop and Surface still use the old Hotmail password.

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Long story.
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